In triangle PQR right angled at Q , PQ =3 cm and PR =6cm. Determine angle QPR and angle PRQ

In triangle PQR right angled at Q , PQ =3 cm and PR =6cm. Determine an

1.	In triangle PQR right angled at Q , PQ =3 cm and PR =6cm. Determine angle QPR and angle PRQ
Answer» Given PQ=3cm and PR=6cm.So, PQ/PR =sinRSin R=3/6=1/2And sin at 30° is 1/2 so angle PRQ = 30 ° therefore angle QPR = 60 °[Bcs sin P = QR/PR